Rolling method and rolling mill of strip for reducing edge drop

Details Rolling method and rolling mill of strip for reducing edge drop Rolling method and rolling mill of strip for reducing edge drop

1997-07-16

1999-03-02

Hail, III, Joseph J.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 92, 72 118, 722414, 72247, B21B 3768

Patent

active

058756639

ABSTRACT:
It is possible, in a rolling method of a strip shifting one-side-tapered work rolls in the axial direction and causing the upper and the lower work rolls to cross each other, to appropriately set a quantity of shift and a crossing angle and to improve an edge drop satisfactorily, by utilizing the relationship of the three factors including the quantity of shift and the crossing angle for determining quantities of operation necessary to correcting an edge drop of the strip and the quantity of correction of edge drop corresponding to these quantities of operation in the form of the relationship between the roll gap between the upper and the lower work rolls and the quantity of correction of edge drop, by providing an effective roll gap reference position apart from the strip edge by a prescribed distance.

REFERENCES:
patent: 5131252 (1992-07-01), Turley et al.
patent: 5174144 (1992-12-01), Kajiwara et al.
patent: 5231858 (1993-08-01), Yamashita et al.
patent: 5524465 (1996-06-01), Kajiwara et al.
Kitamura, Kunio et al. "Edge-drop Control of Hot and Cold Rolled Strip by Tapered-crown Work Roll Shifting Mill." Iron and Steel Engineer. Feb. 1995, pp. 27-32.
Kamada, Shunji et al. "Edge Profile Control using Pair Cross Mill in Cold ROlling." Iron and Steel Engineer. Jun. 1996, pp. 20-26.
Roberts, William L. Cold Rolling of Steel. New York: Marcel Dekker, Inc., pp. 47-48 and 52.

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